Vehicle-tire.



No. 859,856. l PATBNTl-:D JULY 9, 1907.

0.5.T11'UsrxmitmLE TIRE. AIPLIOATION FILED JAN. 11I 1907.

xxx/*Uf* s QQQQQQ@ ne A e CHARLES E. TITUS, OF SPRINGFIELD, MASSACHUSETTS.

vEmcLE-TIRE.

Specicatin of Letters Patent.

Patented July 9, 1907.

Applicationfiled January 11, l.907. Serial No. 351,893.

To all 'whon'vl 'it may concern: 'i v .Be it known that I, GHARLEs E. Tiros, a citizen of. 4the United States, residing at Springelil. in the county of Hampden and State of Massachusetts, haveZ invented new and usetnl Improvements in Vehicle- Tire's, of which the following is a specification. i v

This invention-relates to pneumatic or cushion tiresfor vehicles in which the propelling force is* applied directly from the axle tothe tread of the wheel or wheels; and the object thereof is to provide a tire with means, as hereinafter set forth, 4which acts as an armor for the tread of the 'tire, increases the life thereof,ipre' venting the puncturing thereof and also overcomes any liability of the tire'lskidding or side slipping,

whether the vehicle be driven at a racing or at a moderate speed.

L With the foregoing and other objects in view the invention consists of thenovel construction of tire tread as hereinafter set forth and illustrated in the accompanying drawings', wherein is shown the ,preferred embodiment of the invention, but it is to be understood that changes, variations'and modifications can be resorted to which corne within the scope of the claims hereunto appended.

In describing the invention in detail reference is had to the accompanying drawings, wherein like characters denote corresponding parts throughout the severalfviews, and in which-L Figure 1 is a transverse section of a tire having a tread in accordance with this invention. Fig.- 2 is a top plan View of a portion of a tire showing the tread. Fig. 3 is a perspective view of one of the -elements of the` tread. Fig. 4 is a sectional view of a tread element, and, Figs. 5 and 6 are respectively perspective and sectional views of modified forms of tread element. Referring to the drawings by yreference characters 1 denotes a pneumatic or inflated tire having a metallic tread 2 formed from a plurality of abutting tread ele- A ments.

. with the upper face depressed in a cupilike'manner.

The element further comprises a'c'onical p rotuberance 5 arranged centrally ofthe upper face and which is surrounded by the wall 6 of the depression. The .t'op edge of the wall 6 is scalloped so as to-provide a series "of projections 7 which surroundthe protuberance 5 at a point removed therefrom. The function of the protuberance 5 is to enter the ground was to prevent skidding or side slipping of the tire and the projections 7 also perform a like function when the protuberance 5 is worn away.A The curved wall of the depression and racing the shape of the protuberance 6 willcause a nail or other article to be guided to the bottom of the depresthe element the tire will be prevented from punctur- :ing and in other cases the shape of the protuberancev andthe curved wall ofthe depression will tend to throw 0E the nail, tack or other object from which ther wouldbe liability ofpuncturing the tire. L .To the periphery of the tire is secured a series of tread elements, and owing to the shape of the heads of the elements they will closely abut against each other leaving no space as shown in Fig. 2 so that a substantially solid .metallic tread extending entirely around the circumference` of the tire will be provided,

and, owing'to disposing throughout the circumference ofthe tire, the conical protuberances it will be evide nt that-the tire will be prevented from skiddingior -'side slipping.

InFig. 5 a modified form of tread element is shown and it .consists in rming the protuberance 8 of trun-l .cated cone shape; otherwise thany that as stated the construction of the tread element is the same as that shown in Fig. 3, the same reference characters being applied thereto. The protuberances .5 are .used for purposes,` whereas the protuberance y8 is for general'use as it has a greater wearing surface, or rather used for moderate speed.

It is evident from the foregoing construction of tire that a puncture-proof, as well as a flexible cushion or pneumatic tire is set up, and, furthermore, the construc` tion of the tire will prevent the skidding or side slipping thereof whether the tire be used for racing purposes or at moderate speed, and it is thought the many `advantages of such construction of: pneumatic tire can be thoroughly understood, especially in view of the fact that the life of the tire is increased and accidents owing to the skidding or side slipping of the tire are prevented.

Fig. '6 illustrates a construction -of tread element formed of two sections, one comprising a protuberance 9 and a shank l0 and the other consisting of a head ll having an opening through which the shank extends.

'sion and consequently owing to the metallic head of This construction vastly facilitates the positioning l of the tread elements properly upon the periphery of i the tire, and in this connection it will be stated that a'plurality of heads can be arranged in an abutting if theconstruction 'shown in Fig. 6 is employed as the' separate heads allow of the sibui'ng of one with the Otherwise'than'that stated, the construction oi treadA element in Fig. 6 is the same as that shown in Fig. 3 the same reference characters being appliedthereto.

what I claim is- .1. A -pneumnt'i tire having secured to its periphery a. plurality of abutting tread elements, each of said elementsv Yses-95:56

. consistingt shank, a head provided with adepression,

protubegance extending from the head, and a plurality of .projectionsformed on the headand surrounding the protuberance.

2. A tread element;v for pneumatic tires, consisting of a shank, a head provided with a depression. a protuberance' extending from the head, and a plurality of projections formed on the head and surrounding the protuberance.

Y In .testimony whereof I have hereunto set'my hand in presence of two subscribing witnesses. v

CHARLES E. TITUS.

Witnesses:

M. EAGAN,

'y W. A. Krnnnn. 

